The 60 bottle wine Rack has shelves to hold 2 rows of wine. The bottle row always holds 8 bottles and you can lay another 7 bottles on top of those 8 bottles. The 120 bottle rack (which is 2 sets stacked) has 8 shelves (15 bottles per shelf) and each shelf holds 2 rows. The first row (bottom row) holds 8 bottles and the 2nd row will hold 7 bottles.